The best compression method is "xzlib+preflate+srep+lzma":
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Selected ARC/DS method for Data1-01.bin was: xtool:mreflate+srep_new+4x4:b64mb:lzma:ultra:64m:b t4:fb273:lc8:mc1000000
Selected ARC/DS method for Data2-01.bin was: srep_new+4x4:b64mb:lzma:ultra:64m:bt4:fb273:lc8:mc 1000000
Overall input size: 49.77 GB
Overall output size: 35.00 GB (Ratio 70.32%)
Overall conversion time: 04:24:51
Overall conversion discs: 9 DVD5
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Selected ARC/DS method for Data-01.bin was: xtool:mzlib+xtool:mreflate+srep_new+4x4:b64mb:lzma :ultra:64m:bt4:fb273:lc8:mc1000000
Overall input size: 49.77 GB
Overall output size: 31.88 GB (Ratio 64.04%)
Overall conversion time: 04:00:38
Overall conversion discs: 8 DVD5
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Selected ARC/DS method for Data-01.bin was: xtool:mzlib+xtool:mreflate+srep_new+lolz:[blah blah]
(Sorry, I lost this report text file, but it takes more than 15 hours and still in 8 DVD)
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But it seems there is some problem in new installer with "xtool:mreflate+srep_new+4x4:b64mb:lzma:ultra:64m: bt4:fb273:lc8:mc1000000" method. I got "ISDon.dll" error in 67% of installing.
